The glass is better then any NSX I've ever looked through .
German glass is hands down vastly superior to anything made in Japan and anything they can dream of., Although I would say the Conquest HD5 glass is probably not top of the line Euro glass, It is made on Romaina with Zeiss machinery, and Zeiss coating. Even the 2nd best German glass is going to be slightly superior to the BEST stuff from Japan (Nightforce etc)
I just got my 5-25x50 HD5 the other day, and I was blown way the the contrast, color and clarity. I have crap poor vision 20/40, macular Degeneration, glocoma etc, and I can tell the difference between this scope and my friends Vortex Viper PST 6-24x50. His is clear and crisp even at 24x
I would say the Vortex is as clear, but not quite as bright nor as colorful and less contrast. daytime only comparison.
Is it worth the 50% $$$$ price jump (I bought a demo unit and paid a 21% price jump) over the PST? probably not, on average shooting paper or hunting deer in the open, it would not be worth the 50% price jump But if you hunt at long range, looking through the edge of a dark woods for game, then maybe yes.
The vortex comes with a sunshade, has illuminated rectile. and a 30mm tube and more adjustment and the zero stop work better on the PST.
I compared it at night with the scope it replaced (still in good working order) a Leupod VX-III 6.5-20x50 AO. After looking through the lupy then the Zeiss, I thought I was looking through night vision..
Bear in mind he lupy has 20 year old coating tech, and was a top notch scope for it's day, and has served me well. and NEVER failed me.
I took out the screw for the zero stop as like everyone here has said, only 16.5 moa adjustment .. with it out I had 67 MOA.
No one makes a sunshade for this scope, but low and behold the 2 inch sunshade from my Leupold VX-III 6.5-20x50 worked almost perfect, screwed right in.. it was a just barely lose, The threads where the same but I would say only about 3/4 of the threads was inside the groves of the scope threads.. it would still tighten up fine, but backed out it was ever so slightly lose,, I took plumbers tape around the thread "one time" and screwed the shade on.. tight PERFECT fit.
I plan to buy a VX-III sunshade for it soon.